Home / 10,503.40-15,758.44-3,107.90

Finding the Fourth Proportional to 10,503.40, 15,758.44 and 3,107.90

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Solution

The fourth proportional to 10,503.40, 15,758.44 and 3,107.90 is: 4,662.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.40 : 15,758.44 = 3,107.90 : x
  2. Step 2: Convert to fraction form
    10,503.40/15,758.44 = 3,107.90/x
  3. Step 3: Cross multiply
    10,503.40x = 15,758.44 × 3,107.90
  4. Step 4: Simplify right side
    10,503.40x = 48,975,655.68
  5. Step 5: Solve for x
    x = 48,975,655.68/10,503.40
  6. Step 6: Final answer
    x = 4,662.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.